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標題:
發問:
A power station has an overall efficiency of 35% and it produces 200MW of electrical power. The fuel used in the power station releases 80MJ/kg of fuel burned. Calculate: a.The energy per second supplied by the fuel burned. b. The mass of fuel burned per day.
最佳解答:
a. The energy supplied per second = (200 X 106)W / 35% = 5.71 X 108 Js-1 b. The energy supplied per day = (5.71 X 108) X (3600) X 24 = 4.94 X 1013 Jday-1 So, the mass of fuel burned = (4.94 X 1013) Jday-1 / (80 X 106) MJkg-1 = 6.17 X 105 kgday-1 So, the mass of fuel is 6.17 X 105 kg per day.
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Efficiency發問:
A power station has an overall efficiency of 35% and it produces 200MW of electrical power. The fuel used in the power station releases 80MJ/kg of fuel burned. Calculate: a.The energy per second supplied by the fuel burned. b. The mass of fuel burned per day.
最佳解答:
a. The energy supplied per second = (200 X 106)W / 35% = 5.71 X 108 Js-1 b. The energy supplied per day = (5.71 X 108) X (3600) X 24 = 4.94 X 1013 Jday-1 So, the mass of fuel burned = (4.94 X 1013) Jday-1 / (80 X 106) MJkg-1 = 6.17 X 105 kgday-1 So, the mass of fuel is 6.17 X 105 kg per day.
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